A99 Grade A - ASTM A 99-2025

Grade	A99 Grade A
Corresponding Standard	ASTM A 99-2025 Standard Specification for Ferromanganese
Classification	Other metal materials

A99 Grade A Chemical Element Composition Content (%)

Component	C	Si	Mn	P	S	Cr ^①	As ^①	Pb ^①	Sn ^①
Minimum Value	-	-	78	-	-	-	-	-	-
Maximum Value	8	1.2	82	0.35	0.05	0.5	0.3	0.05	0.02

① Supplemental Chemical Requirements. C: ≤0.10 or ≤0.50 or ≤0.70.

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